Drinking Water Quality (Public Supplies)

In 2019, the quality of public water supplies remained very good with >99% of samples complying with mirobiological and chemical standards. At the end of 2019, 21 boil notices were in place affecting 14,632 people. This is in comparison to the 10 boil notices affecting 897 people at the end of 2018. The majority (59 out of a total of 67) of all boil water notices in 2019 were 'long-term', that is they were in place for longer than 30 days. However, a number of these “long term” notices were due to inadequate disinfection, and Irish Water addressed this issue at the majority of those supplies in 2019. There were 52 supplies (supplying water to 1,128,847 consumers) on the Remedial Action List at the end of 2019, a reduction from 63 supplies at the end of 2018. However, it is important to note that the population affected has increased from 555,689 at the end of 2018 to 1,128,847 at the end of 2019. This increase in population can mainly be attributed to the operational issues experience at the Leixlip Water Treatment Plant in 2019, which serves over 600,000 people. Irish Water need to continue to progress remedial works on the outstanding 'at risk' supplies so that the threat of long-term boil water notices and other chemical failures is eliminated. Based on monitoring results, the quality of the water in our public supplies is very good. However, the vulnerabilities in the second largest water treatment plant in the country highlight a lack of resilience in our water supplies. It is of paramount importance that Irish Water take action to ensure the resilience of supplies.

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Status for Indicator at Amber